package com.coolwen.dao;

import com.coolwen.entity.UserGroup;

import java.util.List;

public interface UserGroupMapper {
    int deleteByPrimaryKey(UserGroup key);

    int insert(UserGroup record);

    int insertSelective(UserGroup record);

    List<UserGroup> selectBySelectiveKey(UserGroup record);

    Integer selectGroupJoinedNumber(Integer groupId);
}